Nasal alar photoplethysmography probe housing



FIG. 1 is a perspective view from above of a nasal alar photoplethysmography probe housing showing our new design;

FIG. 2 is a perspective view from below thereof; and,

FIG. 3 provides an elevational side view thereof, with the opposite side view a mirror image of this view.

The design is for a photoplethysmographic (“PPG”) probe housing which, when emplaced at the nasal alar of a subject and operatively engaged therewith, secures light attenuation signal information from which useful physiologic information is derived. 

CLAIM The ornamental design for a nasal alar photoplethysmography probe housing, as shown and described. 